Jack Richeson 1711836 Richeson Umber Wash Toned Gessoed 1/8" Hardboard 18"x36" Made with beautifully beveled edges on warp-resistant tempered panels Produced with a double coat waterfall system with high Quality toned Gesso Tempered high density fiberboard base offeres optimal strength and durability Perfect for use with oils, alkyds, acrylics, caseins, and other water based paints Made in U.S.A